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Finding the Fourth Proportional to 159,668.40, 239,521.70 and 64,878.33

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Solution

The fourth proportional to 159,668.40, 239,521.70 and 64,878.33 is: 97,325.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,668.40 : 239,521.70 = 64,878.33 : x
  2. Step 2: Convert to fraction form
    159,668.40/239,521.70 = 64,878.33/x
  3. Step 3: Cross multiply
    159,668.40x = 239,521.70 × 64,878.33
  4. Step 4: Simplify right side
    159,668.40x = 15,539,767,570.37
  5. Step 5: Solve for x
    x = 15,539,767,570.37/159,668.40
  6. Step 6: Final answer
    x = 97,325.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.